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diff --git a/apps/examples/ostest/ostest.h b/apps/examples/ostest/ostest.h
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+/****************************************************************************
+ * examples/ostest/ostest.h
+ *
+ *   Copyright (C) 2007-2009 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+#ifndef __OSTEST_H
+#define __OSTEST_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+/* The task_create task size can be specified in the defconfig file */
+
+#ifdef CONFIG_EXAMPLES_OSTEST_STACKSIZE
+#  define STACKSIZE CONFIG_EXAMPLES_OSTEST_STACKSIZE
+#else
+#  define STACKSIZE 8192
+#endif
+
+/* The number of times to execute the test can be specified in the defconfig
+ * file.
+ */
+
+#ifndef CONFIG_EXAMPLES_OSTEST_LOOPS
+#  define CONFIG_EXAMPLES_OSTEST_LOOPS 1
+#endif
+
+/* This is the number of threads that are created in the barrier test.
+ * A smaller number should be selected on systems without sufficient memory
+ * to start so many threads.
+ */
+
+#ifndef CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS
+#  define CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS 8
+#endif
+
+/* Priority inheritance */
+
+#if defined(CONFIG_DEBUG) && defined(CONFIG_PRIORITY_INHERITANCE) && defined(CONFIG_SEM_PHDEBUG)
+#  define dump_nfreeholders(s) printf(s " nfreeholders: %d\n", sem_nfreeholders())
+#else
+#  define dump_nfreeholders(s)
+#endif
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Variables
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+/* dev_null.c ***************************************************************/
+
+extern int dev_null(void);
+
+/* mutex.c ******************************************************************/
+
+extern void mutex_test(void);
+
+/* rmutex.c ******************************************************************/
+
+extern void recursive_mutex_test(void);
+
+/* sem.c ********************************************************************/
+
+extern void sem_test(void);
+
+/* cond.c *******************************************************************/
+
+extern void cond_test(void);
+
+/* mqueue.c *****************************************************************/
+
+extern void mqueue_test(void);
+
+/* timedmqueue.c ************************************************************/
+
+extern void timedmqueue_test(void);
+
+/* cancel.c *****************************************************************/
+
+extern void cancel_test(void);
+
+/* timedwait.c **************************************************************/
+
+extern void timedwait_test(void);
+
+/* sighand.c ****************************************************************/
+
+extern void sighand_test(void);
+
+/* posixtimers.c ************************************************************/
+
+extern void timer_test(void);
+
+/* roundrobin.c *************************************************************/
+
+extern void rr_test(void);
+
+/* barrier.c ****************************************************************/
+
+extern void barrier_test(void);
+
+/* prioinherit.c ************************************************************/
+
+extern void priority_inheritance(void);
+
+/* APIs exported (conditionally) by the OS specifically for testing of
+ * priority inheritance
+ */
+
+#if defined(CONFIG_DEBUG) && defined(CONFIG_PRIORITY_INHERITANCE) && defined(CONFIG_SEM_PHDEBUG)
+extern void sem_enumholders(FAR sem_t *sem);
+extern int sem_nfreeholders(void);
+#else
+#  define sem_enumholders(sem)
+#  define sem_nfreeholders()
+#endif
+
+#endif /* __OSTEST_H */